A computer virus is a software program that can replicate and infect računala.Pravi virus reproductive ability. Although the factual context, some types of malware including adware and spyware programs have no reproductive capacity, they are included in the term computer virus virus.Računalni perform various functions, such as a dull popping up irrelevant messages deleting files and destroying the hard drives.
It is also quite common that a computer virus shows how vulnerable we are, what time the victim devastating consequences as it disrupts the productivity of running into the billions of dollars, while at the same time shows the sophistication of our amazing relationship. We've all become aware of what is computer virus and the havoc it can be done when the Mydoom worm infected nearly a quarter million computers in 2004. This worm affect Microsoft Windows, possibly via e-mail spammers sending junk mail through infected computers. In an extreme scenario, a computer virus can spread through most, if not all vital PC in the world and wreak havoc for business organizations, financial institutions, government functioning and academic institutions.
How do viruses spread?
Now we know what a computer virus and so, it will be interesting to understand how viruses spread. To spread the virus must first be initiated, for example, a user visiting a potentially dangerous place, opening a document infected by a virus, booting from a diskette infected with the "boot sector virus," or double clicking on an infected executable files.
the whole process works as follows:
* The virus software is running
* The virus code is loaded into computer memory
* The virus executes its destructive payload
* The virus replicates in other applications
If all the virus was not to be replicated, then the damage caused would be negligible, but unfortunately the virus to do something far more destructive, such as rewriting the boot sector of your hard disk, steal your sensitive passwords, and hacking the e-mail IDS.
What are Trojan Horses?
As explained earlier, the Trojans or Trojan horses do not replicate themselves but are intended to perform undesirable functions, while at the same time turns to do something drugo.Klasični example of a fake login program in supposedly real bank site that you required to show your sensitive account information.
How to protect your computer from viruses?
To be sure, you simply need to load the antivirus software. After you purchase and install antivirus software, you will be prompted to download regular updates that will allow the program to combat the latest computer virusa.Tipično antivirus software performs the following functions:
* Scans and protects your PC from incoming e-mails
* Warns you if you try to download infected files
* Prevents external attacks by firewall software
Fortunately, computer users do not feel jinxed with viruses these days. Antivirus products have become more advanced. People have realized that the problem is the virus will remain forever, with newer versions making the appearance, often with regular predictability. Good luck, people will still use the computer as long as there are people who can offer solutions.